Tobacco pipe



p s. L. ATKINS I 2,467,002

TOBACCO PIPE Filed July 14, 1945 ATTOlNEY Patented Apr. 12, 1949 UNITEDSTATES PATENT OFFICE TOBACCO PIPE Samuel Lawrence Atkins, New York, N.Y.

Application July 14, 1945, Serial No. 605,137

Claims. (01. 131 19s) This invention comprises an improved tobacco pipe.

Among the objects of the invention are: To provide a pipe having amulti-section bowl and lead-out portion which can be readily taken apartto permit cleaning, repair or replacement of the parts; to provide apipe having a bowl composed of upper and lower chambers separated by aremovable grate for holding the tobacco particles in suspension, thegrate (by virtue of its construction) afiording complete combustion ofthe particles and permitting fresh air to be drawn into the lowerchamber for mixing with the smoke, thereby reducing the temperaturewithin the lower chamber; and to provide, for use in a pipe bowl, aremovable grate having integrally arranged air inlets designed to fitinto apertures in thebowl.

A more complete description of the invention follows in conjunction witha drawing, wherein:

Fig. 1 is a perspective View of a pipe constructed in accordance withthe principles of the invention;

Fig. 2 is a longitudinal sectional view of the bowl and lead-out portionof Fig. 1;

Fig. 3 is a transverse section of Fig. 2 along the line 3-3; h

Fig. 4 is a perspective view of a pipe bowl and lead-out portion ofanother embodiment of the invention;

Fig. 5 is a longitudinal sectional view of Fig. 4; and

Fig. 6 is a perspective view of the removable grate which is utilized inthe bowls of Figs. 1 to 5.

Throughout the figures of the drawing, the same parts are designated bythe same reference numerals.

Referring to Figs. 1, 2 and 3 in more detail, there is shown a tobaccopipe having a bowl or cup, a lead-out portion I4, I6, and a mouthpieceportion 20. The bowl or cup comprises an upper part I2 which has a boreII forming an upper chamber, and a lower part integral with the adjacentends of lead-out portion or stem I4, I 6 and forming a lower chamber I3.Chambers II and I3 are separated by a wire mesh grate 24 provided withtubular rods or inlets 26 havin apertures 28 for permitting air to bedrawn into the lower chamber.

The lower end of bowl portion I2 is cut away at I2 so as to nest into ashoulder I-B of the stem or lead-out portion. The cup or bowl of thepipe is formed of three sections l2, I4 and I6. These sections are heldtogether by a removable metallic band I8 which slides over the upperpart I2.

The lead-out portion or stem, in effect, comprises two halves I4 and I6which meet along line H, and are provided with a central aperture orbore I5 which communicates at one end with the lower chamber I3 and atthe other end with the conventional bore of the mouthpiece 20. One endof the lead-out portion orstem I4, 16 forms the lower end of the bowl,while, the other end is tapered at 22 for nesting within the largedimensioned end ID of the mouthpiece 20. Elements I4 and I6 are thusheld firmly together by the band I 8 at one end, and by the stem 29 atthe other end.

The grate 24 is shown in more detail in Fig. 6, and comprises a centralmetallic wire mesh formation having a pair of square-shaped tubular rodsor inlets 26 positioned opposite each other and securely fastened tosaid grate, as by soldering, brazing, etc. The tubular inlets are eachprovided with a central bore or aperture 28 for permitting air to bedrawn therethrough. These inlets 2B are designed to fit intosquare-shaped apertures in portions I4 and IS on opposite sides of lowerchamber I3. The square configuration of the inlets 2B and the aperturesin the lower part of the bowl. or cup prevent rocking of the grate whenpositioned within the pipe bowl.

It should be noted from an inspection of Figs. 1 and 2 that the inlets26 of grate 24 extend slightly beyond the exterior surface of the bowland form a rest or stop for the band I8.

Figs. 4 and 5 illustrate another embodiment of the invention utilizing abowl having upper and lower chambers II and I3 separated by a grate 24provided with square shaped inlets 26. The essential difference betweenthe embodiments of Figs. 4 and 5 and Figs. 1, 2 and 3 lies in the factthat the cup or bowl of Figs. 4 and 5 comprises only two parts Ma andIfia which form continuations of the lead-out portion or stem. Parts Maand I6a constitute halves of the stem which meet along line Ila. Thecentral or interior of the stem is provided with a bore I511 at thelower part of the bowl and this bore I5a communicates at one end withthe lower chamber I3 of the bowl, as shown, and at the other end withthe mouthpiece in the same manner as shown in Figs. 1 and 2.

In using the pipe of the invention, the inlets 26 permit air to be drawninto the lower chamber I3 by the draft or pull oi the smoker on thepipe. This inrushing air mixes with the smoke in chamber I3 and reducesthe temperature within this chamber. The cooling of chamber I3 afiectscondensation of the tarry substances formed in the combustion of thetobacco and results in a dry smoke. The numerous openings in thegridlike grate enable the oxygen drawn into the lower chamber throughinlets 26 to contact almost the entire surface of the tobacco resting onthe grate, and thus achieve uniform and complete combustion ofthetobacco particles The pipe: of ttheinvention is simpl'eiiniconstruction, inexpensive to manufacture, eflicient in use and service, andenables easy access to the differ ent parts for cleaning, repair orreplacement.

What is claimed is: l. A tobacco pipe comprising -a .multi-bsection bowlhaving an upper chamber and a lower chamber, and a wire mesh grateseparatingssaidrtwo chambers, said lower chamber communicating, with thestem of the pipe,rsaid grate having fixedly secured thereto. solely atits edges a plurality of spaced tubular rods forming air =inlets forsaid lower chamber, said bowl having ,a plurality o'f correspondinglyspaced apertures extending from its interior'at' locations below'thewire mesh portion of the grate to the outer surface of the bowlforaccommodating 'the'tubular rods of said ingthe same, and saidapertures being located below thewire mesh portion .of saidgrate.

3. A tobacco pipe comprising a 'multi section bowl having anupper'cham'ber anda'lower chamber, .and a foram'inous grate separatingsaid two chambers, said lower chamber communicating with'the stem ofthepipe, said'grate having fixedlysecuredithereto solelyat its'edges onopposite 5 sides .thereof. a pairof air inlet tubes'for enabling air-tobeidrawn into said lower chamber-fromoutside of said pipe, and said"lower chamber having 4 a pair of correspondingly positioned aperturesfor accommodating said air inlet tubes.

4. A tobacco pipe comprising a multi-section bowl having an upperchamber and a lower chamber, a wire mesh grate separating said twochambers, said lower chamber communicating with the stem of the pipe,said grate having fixedly secured thereto solely at its edges aplurality of spaced tubu1ar..-rods aforming air inlets for said lowerchamber, aud t-said bowl having :a plurality of correspondingly spacedapertures extending from xitssinterior at locations below the wire meshportion of the grate to the outer surface of the bowl.forsacc'ommodating the tubular rods of said grate, and a. metallic bandencircling said bowl for holding'the sections thereof together, saidtubular rods extendingrpastzthexouter surface of said bowl andlformingsupports for said metallic band.

'5. A tobacco pipe comprising a multi-section bowl having an upperchamber and a lower chamber, and a "foraminous grate separating said twochambers, said lower chamber communicating with-the stembfthe pipe,and-a pair of substantially diametrically positioned air inlet meanspassing entirely through the walls of said pipe bowl'and-termin'ating atpointstadjacent the inner surfaces of the walls of said bowl and alsoadjacent but below 'theouter edges of said grate, said air-inlet meanshavingtheir aXes in a plane above said'stem, said grate being supportedin said bowlat'its-edges by said inlet-meansatpoints immediately abovethe *innerterminations of said air'inlet means.

UAWRENCE ATKINS.

REEERENCES CI'TED The following references are of record in the file .of"this patent:

UNITED S'DATESPATENTS Number Name Date 473,212 Dann'enb'erg Apr. '19,1892 2,098, 161 Pilant Nov.'2, 1937 2,366,215 Richards Jan.'2, '1945FOREIGN PATENTS Number Country Date 120,340 Cheat-Britain Nov. 7/1918

